Anthem Health said on Friday it would buy Cigna in a deal valued at $54.2 billion, creating the largest U.S. health insurer. Cigna shareholders will get $103.40 per share in cash and 0.5152 Anthem shares. The deal comes three weeks after Aetna struck a deal to buy Humana for $37 billion and is part of an industry-wide consolidation of the health insurance industry following the roll-out of the Obama government’s healthcare reform law.